Solve -2*f - 2*u + 8 = 0, 0 = -f - 5*u + 21 + 3 for f.

-1

Solve -a + 4*t - 45 = -36, a = 2*t - 5 for a.

-1

Solve -40 = 5*a + 5*j, -4*a + j = -4*j - 13 for a.

-3

Solve -3*r = -s + 19, 5*r - 24 + 61 = 3*s for r.

-5

Solve q - 3*q - 33 = -5*s, 4*s = 20 for q.

-4

Solve 4*s - 36 = -4*m, -18*m + 21*m - 37 = -5*s for m.

4

Solve 9*i + 16 = 11*i - 2*b, -6*i = 2*b - 40 for i.

7

Solve -3*z = 4*f - 2*z + 8, -3*f + 5 = -2*z for f.

-1

Solve 4*a - 12 = -2*t, -4*a + 23 = -t - 1 for t.

-4

Solve -4*q - 35 = -4*b - 19, 4*q + 17 = 5*b for b.

1